Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risk - Offsetting Derivative Instruments (Details) - USD ($) $ in Millions	Nov. 30, 2018	Nov. 30, 2017
Fair Value Disclosures [Abstract]
Derivative assets, gross amount	$ 0	$ 15
Derivative assets, gross amounts offset in the Balance Sheet	0	0
Derivative assets, net amount presented in balance sheet	0	15
Derivative assets, gross amounts not offset in the balance sheet	0	(8)
Derivative assets, net amounts	0	7
Derivative liabilities, gross amount	29	161
Derivative liabilities, gross amounts offset in the Balance Sheet	0	0
Derivative liabilities, net amount presented in balance sheet	29	161
Derivative liabilities, gross amounts not offset in the balance sheet	0	(8)
Derivative liabilities, net amounts	$ 29	$ 153

Derivative, Collateral, Obligation to Return Securities and Cash

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Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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